Holbein Acrylic Ink (HAI) maintains the same pigment strength and intensity as found in Holbein Heavy Body Acrylic and Holbein Fluid Acrylic, but with much lower viscosity.
HAI does not shift in color tone from wet to dried color and will not clog a .01mm
aperture. HAI will therefore flow seamlessly through any airbrush, technical pen or
HAI can be used directly for bold, brilliant color with a brush, airbrush, dip pen, technical pen or refillable marker. HAI can also be used to achieve the subtle characteristics, washes and tones of watercolor painting.
HAI is compatible with all Holbein water soluble media, and conforms to ASTM D-4236.